Patents by Inventor Widmer Ulrich

Widmer Ulrich has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tricyclic pyridone derivatives
    Patent number: 4855297
    Abstract: The compounds of the formula ##STR1## wherein Ra,R.sub.b,R.sub.c R.sub.d are defined in the specification and pharmaceutically acceptable addition salts are disclosed.The compounds of formula I have valuable pharmacological properties and can be used for the control or prevention of illnesses. In particular, they have muscle relevant, seditive-hypnotic, anxiolytic and/or anticonvulsive activity and can accordingly be used in the control or prevention of muscle tensions, stress conditions, isomnia, anxiety states and/or convulsions.
    Type: Grant
    Filed: December 4, 1986
    Date of Patent: August 8, 1989
    Assignee: Hoffman-La Roche Inc.
    Inventors: Ulf Fischer, Fernand Schneider, Widmer Ulrich